Upgrade Rates

[DeChamp3]

Hello ive this offsets for upgrade:

2

 

but i understand nothing.. 

 

how can i make 100% save upgrade rate till +11 with hs and runes?

and max upgrade with hs/runes to +15

and rate from +12 to +15 with hs like 20% sucess, 50% -1, 10% destroy, 20% nothing

and rate from +12 to +15 with runes like 15% sucess, 50% -1, 25% destroy, 10% nothing

 

would be great if you can tell me how to make this settings above or tell me what need to change and how its calculated 

-for 100% save for runes and hs

-for chance of fail/upgrade/-1/destroy hs and runes

 

 

because it makes no sense for example save runes -> 255 = wtf?